Telephone



2 Sheets-Sheet 1. O. G. GOULD (No Model.)

TELEPHONE.

Patented Jan. 12, 1897.

- INVENTOR BY WRNEY (No Model.) 2 Sheets-Sheet 2.

O. C. GOULD TELEPHONE.

No. 574,901. Patented Jan. 12, 1897.

UNITED STATES PATENT OFFICE.

CLAUDE C. GOULD, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE MAKE ANDBREAK TELEPHONE COMPANY, OF NEIV JERSEY.

TELEPHONE.

SPECIFICATION forming part of Letters Patent No. 574,901, dated January12, 1897.

Application filed April 29, 1895. Serial No. 547,490. (No model-J To allwhom it may concern.-

Be it known that I, CLAUDE O. GOULD, a citizen of the United States,residing at the city of Philadelphia, in the county of Philadelphia andState of Pennsylvania, have invented certain new and useful Improvementsin Telephones, of which the following is a specification.

My invention relates to improvements in telephone instruments, and it isapplicable to that type of instruments which operate in substantialaccordance with the methods referred to by James W. Bonta, for example,in his Patent No. 361,124, of April 12, 1887.

' The principalv objects of my present invention are, first, to improveand perfect the tone and distinctness of articulate speech and thevolume and quality of sound received at the receiver from thetransmitter, and, second, to provide a simple, efficient, durable, andcomparatively inexpensive instrument that is not affected deleteriouslyby climatic conditions, such as moisture and the like, and that isadapted to meet the various requirements of service in practicing themethod of Bonta above referred to.

Accordingly my invention consists in the improvements and in theconstruction and arrangement of parts hereinafter more fully set forthand claimed.

The nature, characteristic features, and scope of my invention 'will bemore fully understood from the following description,taken in connectionwith the accompanying drawings, forming part hereof, and in which-Figure 1 is a transverse central sectional view of atelephone-transmitter embodying features of my invention. Fig. 2 is afront view of the same with the rolling electrode omitted for the sakeof clearness. Figs. 3 and 4: are respectively front and side elevationsof the diaphragm, as mica. Figs. 5 and 6 are respectively front andtransverse sectional views of a modified construction of the basketillustrated in Figs. 1 and 2. Fig. 7 is a sectional view taken on theline 7 7 of Fig. 6; Fig. 8 is a view illustrating a telephone of myinvention arranged upon a pedestal or support. Figs. 9 and 10 arerespectively front 'structed.

as it were, the points of the star and are flat 5 and side elevationalviews of a basket adapted for use in connection with the instrumentshown in Fig. 8. Fig. 11 is a sectional View taken on the line l1 ll ofFig. 10. Fig. 12 is a sectional view taken on the line 12 12 of Fig. 10.tion of the diaphragm shown in Figs. 3 and 4, and Fig. 14 is a sectionalview illustrating the basket fitted to the interior of the housing ofthe instrument.

In the drawings, 1 is a diaphragm, for exadvantageously composed ofnon-corrosive 5 electrically-conducting material, as aluminium or analloy thereof or other suitable material. As shown in Figs. 1 and 2,this basket comprises a circular plate 4:, provided with a series ofround outwardly-projecting arms 5,

arranged ina circle, and in this connection it may be remarked that theround form of the arms not only provides, as it were, a track or waysbetween each of the adjacent arms for the accommodation of the rollingelectrode 3, 7 5

but also prevents the latter from being in a state of equilibrium ifaccidentally placed or moved on top of one of the arms.

The basket 2 is, in the exemplification of my invention illustrated inFigs. 1, 5, 6, 9, 10,

and 11 of the accompanying drawings, supported or carried by a yoke 6,of which the ends may be connected with the casing by providing themwith apertures for the recep tion of dowel-pins, screws, or otherfastening devices 7. This yoke may be composed of aluminium or an alloythereof or of other suitable material. In Fig. 1 the yoke 6 is formedintegral with or is a continuation of the circular plate 4. As shown inFig. 5, the 0 plate 4 (which in this instance is polygonal) and the arms8 may be struck in stellar form from one piece or, plate or otherwisecon- In such case the arms 8 comprise,

and have their adjacent edges beveled, as at 9, in order to constitutethe tracks or ways between each of them for the accommodation of Fig. 13is a view illustrating a modifica- 55 the rolling electrode 3, and inorder to prevent the latter from' remaining in a state of equilibriumupon the face of any of the arms.

As shown in Fig. 6, the basket 2 is connected with the yoke 6 by meansof a pin, rivet, or fastening device 10, which may constitute aconvenient terminal for one of the leading-in wires or circuitconnections at.

The basket shown in Figs. 9 to 12 may be struck from one piece or plate,as aluminium or an alloy thereof, from which the yoke 6 may be alsostruck. As. shown in said figures, the adjacent edges of the arms 11 and12 are beveled in order to constitute the tracks or ways for theaccommodation of the rolling electrode 3, while the arms 13 overlie therolling electrode and prevent its accidental displacement. The yoke 6may be dispensed with, and in such case the basket 2 is fitted to theinterior of the housing or case of the instrument, which is or may bemade conical or tapering for its reception, as shown in Fig. 14:.

It may be remarked that the basket illustrated in Figs. 1, 2, 5, 6, and14 is adapted for use when the instrument has been rotated intoanyposition, as is likely to happen when it is used by simply graspingit in the hand, whereas the basket of Figs. 9 and 10 is useful in theposition shown, and consequently is applicable to instruments mountedupon a base or pedestal, for example, such as is shown at 14 in Fig. 8.

As illustrated in the drawings, the housing or case of the instrumentmay consist of hard rubber, glass, or the like, and comprises a sleeve15, having its larger end threaded or otherwise adapted for thereception of a ring 16 and notched, as at 17, for the accommodation ofthe ends of the yoke 6. The diaphragm 1, already referred to, has anelectrode or contact 18 riveted or otherwise applied to it and providedwith a leading-in wire 00. The edges of the diaphragm may be notched, asshown at 19, Fig. 3, or perforated, as shown at 20, Fig. 13, for theaccommodation of the dowel-pins, screws, or fastenings 7. The diaphragmis mounted between the end face of the sleeve 15 and the inner face ofthe ring 16, which may be recessed, as at 16", for the accommodation ofthe ends of the dowel-pins 7.

21 is a cap applied or fitted to the smaller end of the sleeve 15, andprovided with an opening for the passage of the leading-i n wires .93and 00 and with binding-posts to which the necessary batteryandinduction-coil connections 1 and 3 may be made.

22 is a funnel-shaped mouthpiece which may be conveniently applied tothe ring 16.

From the foregoing description the skilful mechanician will readilyunderstand the construction of the various parts and the advantages ofthe combinations embodying features of my invention. However, it may bestated that the basket 2, by reason of its truncated pyramidic or conicform, or, in other words,

by reason of the inclination, disposition, and form of its arms, notonly prevents accidental displacement of the rolling electrode when theinstrument is transported, turned, or handled, but also, by effecting areduction of friction and an advantageous application of the force ofgravity, insures the proper cooperation and mobility of the rollingelectrode with the contact of the diaphragm when the axis of the basketoccupies a substantially horizontal or natural position in respect toits case or housing. Moreover, the presence of the arms or rods, withtheir intervening spaces that constitute tracks for guiding the rollingelectrode, are important because they constrain the latter to partake ofrectilinear motion, which results in the transmission of articulatesound or speech.

It will be obvious to those skilled in the art to which my inventionrelates that modifications may be made in details without departing fromthe spirit thereof. IIenceI do not limit myself to the preciseconstruction and arrangement of parts hereinabove set forth, andillustrated in the accompanying drawings, but,

Having thus described the nature and objects of my invention, what Iclaim as new, and desire to secure by Letters Patent, is-

1. In a telephone, the combination with a diaphragm, of a basketcomprising a. series of arms and having the form of a conic or pyramidicfrustum, and a rolling electrode mounted in said basket and adapted tocollide with said diaphragm and partake of rectilinear motion betweensaid arms, substan tially as described.

2. In a telephone, the combination with a diaphragm and a rollingelectrode, of a basket comprising a plate and a series of armsprojecting outward from said plate for the accommodation of said rollingelectrode, substantially as described.

3. In a telephone, the combination with a diaphragm and a rollingelectrode, of a plate provided with outwardly-projecting pointed armshaving beveled edges for the accommodation of said rolling electrode,substantially as described.

4:. In a telephone, the combination with a diaphragm and a rollingelectrode, of a series of arms having beveled edges and disposed nearertogether at one of their ends than at the other of their ends and havingspaces between them in which said electrode is afforded rectilinearmotion in respect to the diaphragm, substantially as described.

5. The combination in a telephone, of a casing or housing, a diaphragm,a rolling electrode, a basket for said electrode, and a yoke attached tosaid casin g and basket, substantially as described.

6. The combination in a telephone, of a casing or housing comprising adetachable sleeve and ring, a yoke carrying a basket and having its endadapted to recesses in said sleeve, dowel-pins for said yoke, and a asmica, interposed between the sleeve and rolling electrode and diaphragm,substanring and provided with apertures for the pins tially asdescribed. of the dowel, a rolling electrode, and circuit '7. Atelephone-transmitter comprising the connections, substantially asdescribed. 5 combination of, a casing or housing compris-- In testimonywhereof I have hereunto I 5 ing a sleeve provided at its respective endssigned my name. f with a ring and a cap, a basket comprising a CLAUDE C.GOULD. plate and diverging arms circularly arranged,' In presence of ayoke attached to said basket and doweled A. B. STOUGHTON,

1o betweenthe sleeve and ring, a diaphragm K. M. GILLIGAN.

